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bat passes in total (the highest levels of activity recorded) on one night were surveyed by surveyors who could observe bat activity whilst light levels were still high enough to see the bats. Data collected during these surveys is summarised in Table 5 below, full results are presented in Appendix F.
Table 5: Summary of Manual Activity Surveys Location Date 64/65
9th July 2012
Surveyor
(and location) Common pipistrelle
Paul Barnes (North of feature)
Sarah Brooks (South of feature)
55
11th July 2012
Paul Barnes (East of feature) Sarah Brooks
(West of feature) 4 6 11 14
Soprano pipistrelle
5 12 33 27 Number of bats recorded
Nyctalus species
3 8 0 0
Pipistrellus species
3 2 4 6
Unidentified bat
5 10 3 1 Total 20 38 51 48
The manual bat activity surveys recorded the following species: Common Pipistrelle; Soprano Pipistrelle and Nyctalus species.
The manual bat activity surveys were undertaken from 15 minutes before sunset to 1.5 hours after sunset.
The largest number of bats was recorded from Location 55. On 11th July 2012 at this location 51 bats were recorded by one of the surveyors. Of these bats, 17 were recorded commuting in the same direction (east) along the hedgerow during the survey period, indicating a roost nearby.
Common and Soprano Pipistrelle were the two most common species recorded and were recorded at all locations surveyed. The largest number of Pipistrellus recorded by a surveyor in a single night was at Location 55 on 11th July 2012 (48 bats).
Small numbers (less than 10 passes) of Nyctalus species were recorded at Location 64/65.
No Nathusius Pipistrelle, Myotis species or Barbastelle bats were recorded throughout the survey period.